Station Information

Station ID: 1103
Latitude: 45.407778
Longitude: 141.685278
Coastline code: 641
Station code: 61
Country: JAPAN
Time span of RLR data: 1975 – 2023
RLR completeness (%): 99
Time span of metric data: 1965 – 2023
Metric completeness (%): 86
Link to ellipsoid: Available
Date of last update: 04 Mar 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: P201
Nearby Real Time Stations from VLIZ: waka
Fast Delivery Data from UHSLC station 360: hourly and daily
Research Quality Data from UHSLC station 360: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1994-07-01

27 November 1991: New Installation

Documentation added 1995-08-29

A destructive earthquake and tsunami occurred in the Kuril Islands on 4 October 1994 - see Earth System Monitor, 5(4), June 1995.

Documentation added 2003-11-20

Datum 1998 is 1.507m below Tokyo Peil.

Documentation added 2012-02-22

A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 with the epicentre approx. 70km east of the Oshika Peninsula of Tohoku. It was the most powerful known earthquake to hit Japan. The earhtqake triggered a tsunami with waves of up to 40.5m travelling up to 10km inland.
Where more than one benchmark has the same name a suffix has been added

Documentation added 2014-03-13

The GPS benchmark information has been downloaded from the SONEL website. GPS benchmark P201 is 11.706m above RLR.

Data Authority

Japan Meteorological Agency
3-6-9 Toranomon, Minato City